CVE-2026-35516

{
  "id": "CVE-2026-35516",
  "sourceIdentifier": "[email protected]",
  "published": "2026-04-07T16:16:27.937",
  "lastModified": "2026-10-26T21:10:00.170",
  "vulnStatus": "Analyzed",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "LinkAce is a self-hosted archive to collect website links. Prior to 2.5.4, LinkRepository::update and CheckLinksCommand::checkLink do not check for private IPs. An authenticated user can read responses from internal services (AWS IMDSv1, cloud metadata, internal APIs) by creating a link with a public URL and then updating it to a private IP. The links:check cron job makes the request server-side without IP filtering. This can expose cloud credentials, internal service data, and network topology. This vulnerability is fixed in 2.5.4."
    },
    {
      "lang": "es",
      "value": "LinkAce es un archivo autoalojado para recopilar enlaces de sitios web. Antes de la versión 2.5.4, LinkRepository::update y CheckLinksCommand::checkLink no verifican IPs privadas. Un usuario autenticado puede leer respuestas de servicios internos (AWS IMDSv1, metadatos de la nube, APIs internas) creando un enlace con una URL pública y luego actualizándolo a una IP privada. El trabajo cron links:check realiza la solicitud del lado del servidor sin filtrado de IP. Esto puede exponer credenciales de la nube, datos de servicios internos y la topología de la red. Esta vulnerabilidad se corrige en la versión 2.5.4."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
        {
          "vendor": "Kovah",
          "product": "LinkAce",
          "versions": [
            {
              "version": "< 2.5.4",
              "status": "affected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "[email protected]",
        "type": "Secondary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N",
          "baseScore": 5.0,
          "baseSeverity": "MEDIUM",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "LOW",
          "userInteraction": "NONE",
          "scope": "CHANGED",
          "confidentialityImpact": "LOW",
          "integrityImpact": "NONE",
          "availabilityImpact": "NONE"
        },
        "exploitabilityScore": 3.1,
        "impactScore": 1.4
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "timestamp": "2026-04-09T14:36:23.038676Z",
          "id": "CVE-2026-35516",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "version": "2.0.3"
        }
      }
    ]
  },
  "weaknesses": [
    {
      "source": "[email protected]",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-918"
        }
      ]
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:linkace:linkace:*:*:*:*:*:*:*:*",
              "versionEndExcluding": "2.5.4",
              "matchCriteriaId": "1B6A4089-79B4-45A5-AF07-95336D858B6E"
            }
          ]
        }
      ]
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  ],
  "references": [
    {
      "url": "https://github.com/Kovah/LinkAce/security/advisories/GHSA-4jhm-r4f5-p7xm",
      "source": "[email protected]",
      "tags": [
        "Exploit",
        "Mitigation",
        "Vendor Advisory"
      ]
    },
    {
      "url": "https://github.com/Kovah/LinkAce/security/advisories/GHSA-4jhm-r4f5-p7xm",
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "tags": [
        "Exploit",
        "Mitigation",
        "Vendor Advisory"
      ]
    }
  ]
}